Definition of unmentionableness in US English:

unmentionableness

noun

  • See unmentionable

    • ‘Maybe they will all melt in the sun and you can laugh at them as they run down the street in rivers of unmentionableness.’
    • ‘Kevin underscores a point I neglected - the unmentionableness of Bush's Advisory Panel on Tax Reform.’
    • ‘The unmentionableness of their contribution to the allied effort is a source of quite a bit of, absolutely justified, bitterness in Russia.’
    • ‘Given that anything that Anderson gets involved with turns into a steaming pile of unmentionableness.’
    • ‘The unmentionableness of menstrual products probably made the copywriters speechless.’